Collapsible auxiliary gunstock



y 1948. H. G. HOWARVD 2,441,487

COLLAPS IBLE AUXILIARY GUNSTOCK Filed July 10, 1945 IN V ENTOR.

Patented May 11, 1948 OFFICE COLLAPSIBLE AUXILIARY GUNSTOCK Herman Gordon Howard, Denver, Colo. Application July 10, 1945, Serial No. 604,172

4 Claims.

My invention relates to an adjustable attachment mechanism for supporting, steadying and bracing a gun while sighting andfiring.

An important object of the invention is to provide an adjustable attachment mechanism to the lateral face of the gunstock of firearms which is conveniently adjustable to the shoulder opposite the shoulder from the one on which the gunbutt of the gunstock rests, and which is so adjustable as to steady, support and brace the gun while sighting, in consequence whereof the accuracy of gunfire is steadied and defined.

Another object of the invention is to provide an adjustable attachment mechanism to either lateralface of the gunstock of firearms, which acts as an additional shoulder-rest, and thereby improve steadiness in holding the firearm, and as a direct result thereof the accuracy of gunfire is increased,

A further important object of the invention is to provide an adjustable attachment mechanism to the gunstock of firearms which will operate as an additional absorbent of any kickback force of the gun during firing thereof.

A search of the oflicial Patent Gazettes of the Patent Office of the United States indicates that there has been, prior to my invention, no history of prior art along this line of invention. Therefore, I assume that my invention is not an improvement of any prior invention or discovery, but is on the other hand, an entirely new invention.

Some improvements were made in the past in butts of gunstock and in gunstock curvature, and in one invention a gunstock itself was placed on a swinging adjustment, and in another case a removable gunstock for pistols was patented, but in no case has a separateadjustable attachment mechanism for supporting, steadying and bracing a gun while sighting and. firing been invented or discovered prior to my invention thereof.

I attain the objects heretofore set forth herein by the mechanism illustrated in the accompanying drawings, in which for the purpose of illustration, is shown a preferred embodiment of my invention.

Similar numerals refer to similar parts throughout the several views.

Figure 1 is a perspective view of the adjustable attachment mechanism embodying my invention, with the said attachment mechanism folded into the lateral face of the gunstock,

Figure 2 is a perspective view of the adjustable attachment mechanism embodying my invention, with the said attachment mechanism in position for operation,

Figure 3 is a section view taken on line 3-3 of Figure l, of the adjustable attachment mechanism,

Figure 4 is a section view of a part of the machine or mechanism taken on line 44 of Figure 3, I

Figure 5 is a section view of a part of the said mechanism or apparatus taken on line 55 of ure 3.

The entire framework of the adjustable attachment mechanism fits nearly flush into a channel or T-shaped slot 9 in the lateral face of the gunstock until ready for use, as shown in Figure l of the drawings which accompany this specification.

The main arm member ID, the extension arm member ll having a shoulder rest afiixed thereto, the pivot or hinge pin l2, the U-shaped member I3, the adjustable set screw with a handle l4, and the wing nut thumbscrew l5, constitute the principal parts of the adjustable attachment mechanism for auxiliary gunstocks, which may be made of metal or other suitable substance.

The numeral l0 designates the main arm member which is engaged at the forward portion of the gunstock by the pivot pin l2, which is permanently set into the gunstock in a vertical position and which projects through and secures the main arm member ID and the U-shaped member I3 to the gunstock. The movement of the main arm member I9 is independent of the pin l2 as well as the U-shaped member 13.

The main arm member ID has a channeled groove [6 therein, and the extension arm member I I which is preferably also channeled is slidably mounted therein. The main arm member In and the extension arm member II have an elongated slot I'l therein which is contiguous or in juxtaposition to both of said arm members and through which the wingnut thumbscrew l5 projects'. The slidable movement of the extension arm member II in the main arm member I0 is independent of the wing nut thumbscrew l5 which 'is engaged by a bolt [8, and said wing nut thumbscrew is employed to bind fast the extension arm member II to the main arm member Id at any point of elongation along the slidable axis of the extension arm member II in coincidence with the main arm member ID, as the relative relation of the said arm members bear to the elongated slot ll hereinbefore described.

The U-shaped member I3 is further engaged to the gunstock preferably by means of nuts I9 which are screwed .onto the threaded ends of the projecting forked arms of the U-shaped memher which projecting furcated arms are imbedded in the wood of the gunstock.

The pivot pin I2 and the U-shaped member I3 are immobile and are independent of each other, and the main arm member I together with its extension arm member II rotate about the vertical axis of the pivot pin I2 and the head of the U-shaped' member I3 as the. adjustable attachment mechanism is swung outwardly and away from the gunstock for adjustment to the opposite shoulder from the shoulder on which the gunbutt of the gunstock rests.

The adjustable set screw I4 having a handle affixed thereto is employed to clamp tight the ade justable attachment mechanism at any. angle that 1 is made between the gunstock and the adjustable attachment mechanism in effecting a proper adjustment of the said attachment mechanism for usewhile sightingand firing the gun.

The adjustable set screw I4 projects through the'head of themain armmember ID and'engages the :main arm member I 0 with the U-shaped member I3.

A- thumb notch 2| -is -m2wle in the slotin 'the lateral face of the gunstockdirectly above the handle on the set screw I4 to allow loosening of the-set screw in preparation for'swinging the said attachment mechanism into position for-use.

A thumb notch 22 is made at the head .ofithe slot: in'the lateral face of the gunstock-directly behind the shoulder-rest portion I 24 of. the: arm II of the auxiliarystock, which'thumb notch permits. thumbnail access'to depression 20 m the butt of the said shoulder-rest 24- thereby permitting the attachment mechanism to be quickly pulled away fromthe gunstock for adjustment:

It-is understood that the form of-myiinven-tion, herewith shown and described,- is to be taken as a preferred example of the same, and'that various changes in .theshape, size, and-arrangement ofparts may be resorted to, without departing from the spirit of 'myinvention, or the scope of the subjoinedclaims;

The operation of the collapsible auxiliary gunstock is as follows: When not in use the "entire framework of the said'collapsible auxiliar gunstock fits nearly flush into a slot 9, in the lateral face of the main gunstock 23, as showntin Figure 1 of the drawings. In using the collapsible auxiliary gunstock, the gunner inserts his thumb into the thumb-notch 2I and loosens the set screw I4 having ahandle afiixedthereto, by pulling the handle attached to the-set screw awayfrom thegunstock. The gunner then inserts his thumb into. thumb notch 22 and into thumb-like depres sion 20= inthebutt of the said shoulderlrestzof thecollapsible auxiliary gunstock, and pulls the said mechanism away from the gunstock 23 \for adjustment to the shoulder opposite to the sh lder on which the gunbutt of the main gunst ck 23 rests, while the said gunner is sighting and firing the gun. The gunner then adjusts the shoulder rest of the collapsible auxiliary gunstock to the shoulder which is opposite the shoulder on which the gunbutt of the main gunstock 23 rests, and clamps the adjustable set screw I4 tight, in order that the said mechanism will remain in proper adjustment, as an auxiliary shoulder rest while sighting and firing the gun. The gunner may, if V desired, change the length of the said collapsible auxiliary gunstock mechanism, in making an adjustment thereof to his shoulder ashereinbefore'described, by loosening the thumbscrew I5 and sliding the extension arm member II in the channeled groove I6 of the main arm member". I0, and then by tightening the said thumbscrew I5 when the desired adjustment for length has-been attained.

Having: thus described my invention, Lclaim:

1. In cornbinationa gun stock having a, longitudinally extending recess. in its side, and an auxiliarystock having one end pivotally mounted in'the forward end of-saidrecess, said auxiliary stock being. constructedand arranged to swing on said. pivot mounting laterally of said main stock and-being adaptedto swing into said recess.

2. In astrllctu-re as defined in claim 1, said auxiliary stock being telescopically extensible and collapsible whereby it may be selectively collapsed to fit into said recess and extended when swun out-of saidrecess. I

3. In a. structure as defined in claim 1, said auxiliary stock having abutt member and said recess: being. substantially T-shaped with the cross of the T at the rear end of the recess-to accommodatesaid butt member.

4-1 In a'structure as defined in claim 1, said pivotally mounted end having means for locking the hinged parts in fixedinterrelative angularity.

H. GORDQN HOWARD.

REFERENCES CITED The'following 'reierences are of record'irrthe file-10f this? patent:

UNITED STATES PATENTS Number Name Date 562,487 Quackenbush June 23, 1896 1,196,822 Sues Sept; 5, 1916 1,363,664 Livingston Dec. 28, 1920 1384;386 Green- July- 12, 1921 1,569,901 Virdin Jan. 19, 1926 2,200,780 Schmeisser May 14, 1940 2,360,881 Lockhead Oct. 24, 1944 

